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authorschneems <richard.schneeman+foo@gmail.com>2018-09-20 13:56:07 -0500
committerschneems <richard.schneeman+foo@gmail.com>2018-09-20 15:31:38 -0500
commit135d3e15b72b9820212027b057df8980140a947b (patch)
tree3d2b41d17c4603aced3a9d414af27327b95e2229 /activesupport/lib/active_support/cache/file_store.rb
parentb45b96b91fc62e7488002cb05c96ec78577f7873 (diff)
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[close #33907] Error when using "recyclable" cache keys with a store that does not support it
If you are using the "in cache versioning" also known as "recyclable cache keys" the cache store must be aware of this scheme, otherwise you will generate cache entries that never invalidate. This PR adds a check to the initialization process to ensure that if recyclable cache keys are being used via ``` config.active_record.cache_versioning = true ``` Then the cache store needs to show that it supports this versioning scheme. Cache stores can let Rails know that they support this scheme by adding a method `supports_in_cache_versioning?` and returning true.
Diffstat (limited to 'activesupport/lib/active_support/cache/file_store.rb')
-rw-r--r--activesupport/lib/active_support/cache/file_store.rb7
1 files changed, 7 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/cache/file_store.rb b/activesupport/lib/active_support/cache/file_store.rb
index 04c54c30d0..b17f0a4a4a 100644
--- a/activesupport/lib/active_support/cache/file_store.rb
+++ b/activesupport/lib/active_support/cache/file_store.rb
@@ -26,6 +26,13 @@ module ActiveSupport
@cache_path = cache_path.to_s
end
+ # Advertise that this cache store can be used
+ # with "recyclable cache keys" otherwise known
+ # as cache versioning.
+ def supports_in_cache_versioning?
+ true
+ end
+
# Deletes all items from the cache. In this case it deletes all the entries in the specified
# file store directory except for .keep or .gitkeep. Be careful which directory is specified in your
# config file when using +FileStore+ because everything in that directory will be deleted.